Experimental Study Of Salty Wind Damage

Abstract

The height and distance of splashing generated by sea waves were simulated in a wave tank with a wind tunnel, and the prevention of salty wind damage is considered in the present study. The model test was carried out using a twodimensional wave tank (length: 30 m, width: 0.7 m, and depth: 1.2 m) with a wind tunnel. A 1/20 model of the seawall was set up on a fixed bed with a 1/15 slope at the end of the wave tank. Models of the concrete armor units were placed in front of the seawall in four rows and two steps. The windbreak net models were made of a 2 mm x 2 mm mesh. The heights of the windbreak nets were 15 cm and 20 cm. The windbreak net was set up at positions of 10 cm, 20 cm, 30 cm, 40 cm, and 50 cm behind the seawall. The main conclusions of the present study are that the splashing behind the seawall is prevented by the windbreak net, and the splash height is affected by concrete armor units placed in front of the seawall.